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Avoid a race with some lame window managers, which could lead to a

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crash when a window is closed and deallocated while a tool tip is
visible.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@30513 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Wolfgang Lux 2010-05-31 21:55:33 +00:00
parent fc76fad1a0
commit b59b4e7e32
2 changed files with 17 additions and 5 deletions
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16
Source/NSWindow.m
View file

@ -767,6 +767,17 @@ many times.
DESTROY(mini);
}
/* Terminate backend window early so that the receiver is no longer returned
from GSOrderedWindows() or GSAllWindows(). This helps to prevent crashes
due to a race with some lame window managers under X that do not update
the _NET_CLIENT_LIST_STACKING property quickly enough. GSOrderedWindows()
may be called (indirectly) when a tooltip is visible while a window is
deallocated. */
if (_windowNum)
{
[self _terminateBackendWindow];
}
/* Clean references to this window - important if some of the views
are not deallocated now */
[_wv _viewWillMoveToWindow: nil];
@ -798,11 +809,6 @@ many times.
*/
[GSServerForWindow(self) removeDragTypes: nil fromWindow: self];
if (_windowNum)
{
[self _terminateBackendWindow];
}
if (_delegate != nil)
{
[nc removeObserver: _delegate name: nil object: self];